Home / 13,818.05-20,730.26-3,957.41

Finding the Fourth Proportional to 13,818.05, 20,730.26 and 3,957.41

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Solution

The fourth proportional to 13,818.05, 20,730.26 and 3,957.41 is: 5,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.05 : 20,730.26 = 3,957.41 : x
  2. Step 2: Convert to fraction form
    13,818.05/20,730.26 = 3,957.41/x
  3. Step 3: Cross multiply
    13,818.05x = 20,730.26 × 3,957.41
  4. Step 4: Simplify right side
    13,818.05x = 82,038,138.23
  5. Step 5: Solve for x
    x = 82,038,138.23/13,818.05
  6. Step 6: Final answer
    x = 5,937.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.